Cosmos Club: Using a Graphite "Knife" to Cut Ice.
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- Опубліковано 16 бер 2017
- Check out how good graphite is at conducting heat energy! Well, it is specifically pyrolytic graphite with some covalent bonding between its graphene flakes!
Get your own graphite knife here at The STEM Store of Canada - ssoc.ca/ - Розваги
it's graphite not graphine , even says so on the box. graphite does not have the same properties as graphene. you're essentially playing with a big peice of pencil led.
Great Job....
I saw a diamond blade on ice video and immediately started looking if someone did it with Graphene!!!
This guy sounds just like the math guy from Kahn Academy... which is the best voice in online education in my opinion :)
Another application seems to be for heating up water, so you have your graphene coated wire attach it to your arm pit and a coil attached to the cup watch the water warm up with no extra energy being used other than that from the heat from your armpit.
We clearly have a huge amount of heat under our armpits and it often just goes to waste, harness the armpit heat.
We could also make use of the heat in our mouth to power low powered gadgets for example to keep our mouth clean rather than having to brush our teeth.
Or to power electronic glasses for auto focus and zoom, by taking heat from just inside our ears.
Duuuudeee! This is insane!
AWESOME!!!
So after watching this I'm thinking this could be used to make a pro active cooling system or heating system, whereby if you wanted to keep something cool with little effort or wanted to keep something at a regular temperature you could use this stuff with an external low cost small system.
Ie graphene coated wire could be used to transfer heat through cloth much more efficiently than heating up wire.
Thus electronically controlled graphene thermal suit that used very little power.
Which I would have thought would be great for space suits or wet suits, or heated gloves or boots and so on.
At the moment these items use quite a lot of electricity, however using this stuff it would use a fraction of the power.
looks great for bartending or ice fishing
Is it good old pyrolytic carbon?
THat's already pretty fancy!
I think i got to about 4 'graphene's before i switched it off.
Wow!
next for my project! build a graphene sword!
So amazing
Gabriel_89_91 Right?? I can't wait to see how this I applied in future technologies.
I can't believe how fast it was. was the graphene bar super cold?
It got cold as it was able to transfer the heat energy so quickly to the ice.
All he's got is graphite - big deal.
That is not graphene.
Well, I guess it is specifically pyrolytic graphite with some covalent bonding between its graphene layers.
+MrShaverIsAwesome Oh.
George Washington is a crack fiend
MrShaverIsAwesome sorry dude but graphemes can’t be stacked on each other the definition of graphene is a one atom layer thick of carbon atoms not more than one then it’s just graphite so yea unless theirs a substrate and then they wouldn’t be stacked on each other
Dean Dollahite Graphene can be stacked on each other, it just can't be interconnected or else then it'l just be graphite. Also graphene doesn't have much friction between itself so it would just slide of each other if it were just by itself (correct me if i'm wrong)
Graphene is very rare and hard to make so they can't make it in quantities that large
Whoa!
Ooh graphene heat sinks.
That's not graphene M8...Yea. Graphene is part of Graphite, but then you could say oh I have a graphene pencil, when I fact when you write with a graphite pencil you leave small. Peice of "graphene" what you have their is a graphite blade, a pure graphene blade wouldn't look like that and would be impossiblely thin (it's also named graphite blade =)) good video though and great speaking voice!
You are right, thanks for that correction (and extra info). I should have been more specific in the video that it is pyrolytic graphite with some covalent bonding between its graphene layers. I thought the title and video description would have cleared that up. Thanks for the feedback! :)
MrShaverIsAwesome your good man, if their was a graphine blade I would scoup that up in a hot 2nd lol
Ooooo, an atom-thick blade would make a bad ass kitchen utensil!
Graphene is just a comercial exaggerate!real one layer graphene is really hard to make(and expensive)
not anymore. there is an extremely simple method to producing high quality graphene now.
here you go: en.wikipedia.org/wiki/Graphite_oxide
it is not graphene if it is not a single layer.
Well, I guess it is specifically pyrolytic graphite with some covalent bonding between its graphene layers.
No it's not graphene in any shape or form, they sold a lie. Graphene as mentionned is ONE layer only, and there are no processing method at this point (maybe in advanced laboratories) to stack graphene layers separated by anything, it's very very advanced research. So your knife is just Graphite. Graphene is transparent, and 200x stronger that steel, so in no way it's brittle.
@@Turbo999be Strength isn't malleability. Glass has about the same strength as steel.
Can you do more experiments with it?
HomegrownTyrone A great idea. I'm looking at doing something with electrical conductivity. Stay tuned!
Graphene is not brittle. It’s the strongest substance ever discovered by orders of magnitude. The “knife” you have is either not made of graphene, but coated with it on of a delicate substructure, or a low grade graphene composite on a similar structure.
It has some of the properties of the graphene on the surface, but is not made of pure graphene.
ProtoMeNTL grafeno partido lol
Graphine is almost 2 dimecenal it is one atom thick and yours was like 2mm and graphine is flexible white you had there is graphite
You do know you can do this with silver also.
Really! I didn't realize it was such a good conductor!
That's not graphene, that's graphite.
So basically you are cutting some ice with a pencil.
Technically, it is flakes of graphene pressed together. Graphene is made from graphite. Soooo, yes, you are correct!
is it thtat graphene which is 200 times stronger than steel? it cant be a graphene if it broke that easily , brittle is one thing but weak, that isnt graphene.
varun choudhary It depends entirely on what was used to hold I together... Graphene doesn't form in pieces that thick and lengthy.
varun choudhary sorry dude but graphene can’t be stacked on each other the definition of graphene is a one atom layer thick of carbon atoms not more than one, then it’s just graphite so yea this guy has no idea what’s he’s talking about man
varun choudhary And it’s conductivity I’m pretty sure doesn’t have much to do with heat transfer
Dean Dollahite
It. Does tho
Right. This is specifically pyrolytic graphite with some covalent bonding between its graphene layers.
probably just graphite.
Well, I guess it is specifically pyrolytic graphite with some covalent bonding between its graphene layers.
GRAPHITE = GOD FATHER, GRAPHENE = GOD SON = JESUS!!
Use a fork next time and call it aluminum cutting ice
He starts cutting @1:08 ur welcome
Ha, thanks! Not all heroes wear capes. ;)
Not graphene
Yes, technically it is pyrolytic graphite with some covalent bonding between its graphene layers. But it is not a single sheet of one atom thick graphene. I should have been more clear in the video, but I hoped the title and video description would have cleared that up! Thanks for the comment! :)
Yeah the title def. renegs
That is not graphene its way too thick
Yes, you are absolutely correct. It is specifically pyrolytic graphite with some covalent bonding between its graphene flakes. I should have been more clear in the video! Thanks for taking the time to comment. :)
Something to mess with your mind: carbon allotropes, just simple rearrangements of the carbon atoms give radically different results. Diamond: simple cubic arrangement of pure carbon results in the hardest substance known. Graphite: miniscule flakes of graphene loosely bonded to result in one of the softest materials known. Aerogel : aka solid smoke, the least dense solids known, conducts virtually no thermal energy and no electricity. Graphene: carbon arranged in vast sheets of chicken wire, strongest material known, best conductor of heat and electricity. Coal: flamable. Carbon nanotubes: nearly strongest fibre possible, basis for Vantablack the blackest black known so far. Carbine: triple-bonded carbon chain, is the strongest possible fibre and wickedly hard to fabricate.
Woah, what a great comment. I'm going to be sure to point this out to my students. Crazy when you think of matter like this! I actually have a video where I explore aerogel if you are interested. (ua-cam.com/video/6GEMYlUjUz0/v-deo.html)
When something is what it isn’t 😂 very Kool 😎
Coal: flamable, seems legit while the others have tons of description
Everytime he said graphine i cringed
"very unique" - either it is unique or it isn't. "unique" has no gradations.
Thanks for taking the time to point out and correcting my grammatical error.
Look at the graphene structure, 6 points, 6 lines, and many of these sixes. That's the mark of the beast 666. Also what can cause pain (Revelation 16:10) and “a noisome and grievous sore” (Revelation 16:2)? Only something medicinal can cause these. Not a chip implant. Also human body is 18% carbon. So therefore "a man's number" is also 666. (Revelation 13:18）“The sun shall be turned into darkness, And the moon into blood, Before that great and notable Day of the Lord come: And it shall come to pass, that whosoever shall call on the name of the Lord shall be saved.”
(Acts 2:20-21